| Șeulia | |
| Name Other: | Sály |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Mureș County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Deag, Șeulia de Mureș |
| Length: | 17km (11miles) |
| Mouth: | Mureș |
| Mouth Location: | Iernut |
| Mouth Coordinates: | 46.4555°N 24.2399°W |
| Basin Size: | 55km2 |
The Șeulia (Hungarian: Sály, Sály-patak) is a left tributary of the river Mureș in Transylvania, Romania. It discharges into the Mureș in Iernut.[1] Its length is 17km (11miles) and its basin size is 55km2.